From the article linked on the page: http://html5hub.com/using-webgl-to-add-3d-effects-to-your-website/#i.3lpdiy14g4frns http://html5hub.com/using-webgl-to-add

From the article linked on the page: http://html5hub.com/using-webgl-to-add-3d-effects-to-your-website/#i.3lpdiy14g4frns http://html5hub.com/using-webgl-to-add-3d-effects-to-your-we... "Note that, in this demo, I assume the visitor is using a WebGL-enabled browser. A better practice would have been to first implement the page with static images to ensure basic functionality for everyone, then add the 3D effects as a progressive enhancement for advanced browsers."